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93.109  Articles
1 of 9.312 pages  |  10  records  |  more records»
The Neuquén Basin in northwestern Patagonia, Argentina, holds the most important record of Cretaceous dinosaurs in South America.The Neuquén Group (Upper Cretaceous) is the richest dinosaur-bearing unit of the basin. It comprises the Río Limay, the Río Ne... see more

The uppermost Cretaceous continental deposits of the Neuquén Basin (west-central Argentina) have yielded a high diversity vertebrate assemblage, including numerous dinosaur species. The Neuquén Group is the richest unit in remains of dinosaur of the basin... see more

The Candeleros Formation is represented by a succession of deposits that represent terminal fans starting to fill a foreland basin (back-arc) during the Albian. The different sub-environments of the terminal fan suggest low gradients during the onset of d... see more

This paper deals with the stratigraphy, the systematics of the ammonitefaunas and the biostratigraphy of the Cuyo Group in the Sierra de Reyes (southern Mendoza Province, Argentina). The230 m-thick marine siliciclastic succession of the Cuyo Group is comp... see more

The Upper Cretaceous nonmarine deposits of the Neuquén Basin have an important regional exposure. These deposits are included in the Neuquén Group, a well-studied unit in both the south and central part of the basin. However, the northernmost exposed betw... see more

The Allen Formation records the first Ingression Atlantic to the Neuquén Basin during the Late Cretaceous. The definition of lithofacies and facies associations interpretation for stratigraphic sections in Paso Córdoba and Salitral Moreno area, Río Negro,... see more

In the present contribution, the partial results of a detailed study of the magmatic, metamorphic and tectonic events developed in the Aluminé Igneous-Metamorphic Complex (AIMC) are given. We define the AIMC as the set of pre-andean and andean intrusive i... see more

A metamorphic assemblage of very low grade metamorphism in Paleogene volcanic rocks from the Andesitic Formation, Confluencia, Neuquén Province, is studied. The protolith is basaltic and andesitic. The secondary minerals are calcic, calcosodic and sodic z... see more

The taxonomically (titanosaurid) identified eggs and eggshells of Auca Mahuevo (Patagonia, Argentina) provide an opportunity to compare and identify orphan megaloolithid eggs found elsewhere. Previous investigation determined that the oological material f... see more

1 of 9.312 pages  |  10  records  |  more records»